He gave me his heart on Valentine's Day, and I said YES! http://t.co/o9OIfw08TQ
— Lady Gaga (@ladygaga) February 16, 2015

The 28-year-old singer posted a picture of her massive heart-shaped diamond engagement ring to Instagram, as well.

According to US Weekly, Kinney and Gaga celebrated their engagement (and the remainder of Valentine's Day) at New York's Joanna Trattoria, a restaurant owned by Gaga's family.

The pair began dating four years ago after meeting on the set of Gaga's “You & I” music video, in which Kinney played the singer's love interest.

As for the wedding?

Though Gaga recently joked she'd be “hanging out in a pickup truck at a David's Bridal” if she ever got married, we have a feeling the nuptials will be, in typical Gaga fashion, completely unpredictable -- and perfectly one-of-a-kind.